Chapter 32 Flashcard 1

Front

How is body temperature regulated under cold conditions? Fill in the blanks: The thermoreceptors in the (a)___________________ detect the change of body temperature. The (b)___________________ in the hypothalamus is then stimulated. It initiates responses in the skin to (c)___________________ heat loss.

Back

(a) hypothalamus；(b) heat gain centre；(c) reduce

Front

How is body temperature regulated under cold conditions? Fill in the blanks: The arterioles near the skin surface (d) ____. This (e) ____ blood flow to the capillaries near the skin surface.

Back

(d) constrict; (e) reduces

Front

Fill in the blanks with suitable words to show how body temperature is regulated under cold conditions. (f) _______ sweat is secreted by the sweat glands. The erector muscles (g) ________, the hairs become erect.

Back

(f) Less; (g) contract

Front

Fill in the blanks with suitable words to show how body temperature is regulated under cold conditions. The thyroid gland secretes (h)___________________ thyroxine. It (i)___________________ the metabolic rate of body cells so that more heat is generated in the body.

Back

(h) more；(i) increases